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Ubuntu Not Starting Second RAID Array



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
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Before I start let me say that I am by no means an expert with this stuff, if you see something that you would have done differently let me know.



Ok, so I have a Ubuntu 18.04 server with a boot drive and 4 8T drives. My plan was to make 2 RAID 0 arrays, that would sync with rsync every night. I don't want to accidentally delete something forever so I decided to do the rsync route. I made my first array a couple of days ago, tested it, rebooted the server to make sure the settings stayed and then copied almost 3T of data to it.



I then went to make the second array, and that went great. However, whenever I reboot I have to rebuild the array by typing sudo mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sda /dev/sde. Once I do that it mounts just like normal, but that deletes all the data on it. I tried sudo mdadm -A /dev/md1 and sudo mdadm --assemble --scan, neither one will bring the array up or say anything for that matter. mdstat also doesn't say that I have a drive /dev/md1



$ cat /proc/mdstat
Personalities : [raid0] [linear] [multipath] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : active raid0 sdb[0] sdd[1]
15627788288 blocks super 1.2 512k chunks

unused devices: <none>


Here is my mdadm.conf and fstab just in case



mdadm.conf



ARRAY /dev/md0 metadata=1.2 name=server-1:0 UUID=bc5145a0:d633e28a:940ddf09:7cfc2477
ARRAY /dev/md1 metadata=1.2 name=server-1:1 UUID=8a575273:38284856:a0a90411:41ef2a24


Fstab



/dev/md0 /mnt/Media ext4 defaults,nofail,discard 0 0
/dev/md1 /mnt/Backup ext4 defaults,nofail,discard 0 0


Any help will be greatly appreciated.









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    0















    Before I start let me say that I am by no means an expert with this stuff, if you see something that you would have done differently let me know.



    Ok, so I have a Ubuntu 18.04 server with a boot drive and 4 8T drives. My plan was to make 2 RAID 0 arrays, that would sync with rsync every night. I don't want to accidentally delete something forever so I decided to do the rsync route. I made my first array a couple of days ago, tested it, rebooted the server to make sure the settings stayed and then copied almost 3T of data to it.



    I then went to make the second array, and that went great. However, whenever I reboot I have to rebuild the array by typing sudo mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sda /dev/sde. Once I do that it mounts just like normal, but that deletes all the data on it. I tried sudo mdadm -A /dev/md1 and sudo mdadm --assemble --scan, neither one will bring the array up or say anything for that matter. mdstat also doesn't say that I have a drive /dev/md1



    $ cat /proc/mdstat
    Personalities : [raid0] [linear] [multipath] [raid1] [raid6] [raid5] [raid4] [raid10]
    md0 : active raid0 sdb[0] sdd[1]
    15627788288 blocks super 1.2 512k chunks

    unused devices: <none>


    Here is my mdadm.conf and fstab just in case



    mdadm.conf



    ARRAY /dev/md0 metadata=1.2 name=server-1:0 UUID=bc5145a0:d633e28a:940ddf09:7cfc2477
    ARRAY /dev/md1 metadata=1.2 name=server-1:1 UUID=8a575273:38284856:a0a90411:41ef2a24


    Fstab



    /dev/md0 /mnt/Media ext4 defaults,nofail,discard 0 0
    /dev/md1 /mnt/Backup ext4 defaults,nofail,discard 0 0


    Any help will be greatly appreciated.









    share







    New contributor




    Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












      0








      0








      Before I start let me say that I am by no means an expert with this stuff, if you see something that you would have done differently let me know.



      Ok, so I have a Ubuntu 18.04 server with a boot drive and 4 8T drives. My plan was to make 2 RAID 0 arrays, that would sync with rsync every night. I don't want to accidentally delete something forever so I decided to do the rsync route. I made my first array a couple of days ago, tested it, rebooted the server to make sure the settings stayed and then copied almost 3T of data to it.



      I then went to make the second array, and that went great. However, whenever I reboot I have to rebuild the array by typing sudo mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sda /dev/sde. Once I do that it mounts just like normal, but that deletes all the data on it. I tried sudo mdadm -A /dev/md1 and sudo mdadm --assemble --scan, neither one will bring the array up or say anything for that matter. mdstat also doesn't say that I have a drive /dev/md1



      $ cat /proc/mdstat
      Personalities : [raid0] [linear] [multipath] [raid1] [raid6] [raid5] [raid4] [raid10]
      md0 : active raid0 sdb[0] sdd[1]
      15627788288 blocks super 1.2 512k chunks

      unused devices: <none>


      Here is my mdadm.conf and fstab just in case



      mdadm.conf



      ARRAY /dev/md0 metadata=1.2 name=server-1:0 UUID=bc5145a0:d633e28a:940ddf09:7cfc2477
      ARRAY /dev/md1 metadata=1.2 name=server-1:1 UUID=8a575273:38284856:a0a90411:41ef2a24


      Fstab



      /dev/md0 /mnt/Media ext4 defaults,nofail,discard 0 0
      /dev/md1 /mnt/Backup ext4 defaults,nofail,discard 0 0


      Any help will be greatly appreciated.









      share







      New contributor




      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      Before I start let me say that I am by no means an expert with this stuff, if you see something that you would have done differently let me know.



      Ok, so I have a Ubuntu 18.04 server with a boot drive and 4 8T drives. My plan was to make 2 RAID 0 arrays, that would sync with rsync every night. I don't want to accidentally delete something forever so I decided to do the rsync route. I made my first array a couple of days ago, tested it, rebooted the server to make sure the settings stayed and then copied almost 3T of data to it.



      I then went to make the second array, and that went great. However, whenever I reboot I have to rebuild the array by typing sudo mdadm --create --verbose /dev/md1 --level=0 --raid-devices=2 /dev/sda /dev/sde. Once I do that it mounts just like normal, but that deletes all the data on it. I tried sudo mdadm -A /dev/md1 and sudo mdadm --assemble --scan, neither one will bring the array up or say anything for that matter. mdstat also doesn't say that I have a drive /dev/md1



      $ cat /proc/mdstat
      Personalities : [raid0] [linear] [multipath] [raid1] [raid6] [raid5] [raid4] [raid10]
      md0 : active raid0 sdb[0] sdd[1]
      15627788288 blocks super 1.2 512k chunks

      unused devices: <none>


      Here is my mdadm.conf and fstab just in case



      mdadm.conf



      ARRAY /dev/md0 metadata=1.2 name=server-1:0 UUID=bc5145a0:d633e28a:940ddf09:7cfc2477
      ARRAY /dev/md1 metadata=1.2 name=server-1:1 UUID=8a575273:38284856:a0a90411:41ef2a24


      Fstab



      /dev/md0 /mnt/Media ext4 defaults,nofail,discard 0 0
      /dev/md1 /mnt/Backup ext4 defaults,nofail,discard 0 0


      Any help will be greatly appreciated.







      raid mdadm ubuntu-18.04 raid0





      share







      New contributor




      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 1 min ago









      Jacob LarsenJacob Larsen

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      New contributor




      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Jacob Larsen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















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